Design And Implementation Of Submarine Cable Buried Tracking Platform Based On Embedded

In the 21 st century,modern science and technology have made continuous progress,and at the same time,the competition among countries has gradually shifted from land to sea.As an important part of global communication system,submarine optical cable has irreplaceable performance advantages.Due to the huge number of submarine cables laid in China and the increasing demand for fault maintenance,submarine cable path tracking technology has become the key to accelerate the construction of marine communication system.This thesis studies a three-coil submarine cable detection device based on electromagnetic induction,which mainly relies on the submarine cable embedding and tracking scheme designed by the self-propelled embedding vehicle.It can not only accurately judge the direction of submarine cable path,but also provide a visual operation interface to guide the embedding vehicle to carry out efficient embedding tasks in submarine cable laying before burying.Firstly,this thesis describes the historical process of submarine cable engineering in the world.By comparing and discussing the common submarine cable detection technologies at home and abroad,and combining with the research background,the author chooses the metal detection scheme to study the principle of submarine cable detection by electromagnetic induction.By analyzing the advantages and disadvantages of various metal detection methods,the author decided to adopt pulse detection technology.According to the principle of submarine cable path positioning,a three-coil detection scheme is proposed to accelerate the tracking speed of the platform.Secondly,according to the practical application requirements,this thesis designs the functional modules of submarine cable embedding and tracking platform.For the interference of background environment,the hardware platform with STM32 as the main controller is built,and the circuits such as signal acquisition unit,data processing unit and power conversion unit are designed to improve the detection performance of the platform from the hardware.Finally,the platform software architecture is designed.The author controls the normal operation of the detection device through time-sharing detection,optimizes the detection data by using digital filtering algorithm,designs the route initial positioning algorithm and left-right positioning algorithm to improve the tracking accuracy of submarine cables,designs the upper computer user interface to realize information visualization,and completes the physical construction of the platform from the aspects of stability and anti-interference performance of the installation structure.The submarine cable embedding and tracking platform is designed by combining software and hardware,which improves the ability of detecting and tracking submarine cables,controls the operation period,and reduces the dependence on foreign technology.Therefore,this thesis has important research significance and application value.